Type-writer.



A. G. SNYDER.

TYPE WRITER.

APPLIOATION FILED DEC. 27, 1909.

Patented Aug. 19, 1913.

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WITNESS-ES:

INVENTOR ATTORNEY A. G. SNYDER.

TYPE WRITER.

' APPLICATION FILED DEC. 27. 1303. 1,070,549, Patented Aug. 19, 1913.

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AUGUSTUS G. snvnnn, or

UTICA, NEW YORK, ASSIGNOR OF ONE-HALF TO ROBERT T. THOMAS, OF UT ICA, NEW YORK.

TYPE-WRITER.

intense.

Specification of Letters Patent.

Patented Aug. 19,1 913?.

Application filed December 27, 1909. Serial No. 535,139.

To all whomit may concern:

Be it known that 1, nuousrns G. SNYDER,

a residentof Utica, in the county of Oneida and State of New York, have invented certain new and useful Improvements in Typel/Vriters; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the reference-numerals marked thereon, which form partof this specification.

The object of my invent-ion is to provide an improved form of typewriter wherein the practice heretofore pursued of either shifting the platen or shifting the type bar basket to bring into operation the upper or lower case of letters is obviated, anda machine produced which is simple and effective and well adapted to meet the requirements of a typewriting machine.

Figure 1 shows a vertical sectional view of a typewriter embodying features of my coi'istruction. Fig. 2 is a partial plan view of a typewriter machine embodying the features of my construction.

Referring to the reference letters and figures in a more particular description, 10 indicates the frame of a typewriting machine, which may be of the usual construction and which is provided particularly with the segment 11 on which the hangers 12 carrying the type bars 13 pivotally mounted .eonnected b at 14 therein are supported. At the swinging end the type bars 13 are adapted in normal. position to he supported on a semicircular rest 15 and are adapted to describe an arc of about 90 degrees in moving from the rest to their printing, position on the face of the platen 16. The type bars 13 are provided with a bell crank portion to which one end of the connecting rod 17 is attached, While the other end of the connectii'lg rod 17 attaches to one arm of the bell crank lever 18 mounted on a fixed bearing at 29 in the frame. The opposite end of the bell crank lever 18 is connected by a connecting rod '19 with one end of the slotted link 20. The opposite end of the slotted link 20 is connected by another 'connecting rod 19 with a bell crank lever 18 similar to and next adjacent to the one shown in Fig. 1 and aconnccting arm as 17 with Ehenext a jacent type bar 13 to the one shown in Fig. 1. The slotted link 20 is connected by a link or connection 21 from a point at or near its middle with the key lever 22. Extending longitudinally through the series of links 20 provided on the machine is a rod 23, which serves as a-fulcrum for the link and is mounted at each end in the swingin ends of levers 2 1, which levers 'are pivotally'mounted and rigidly secured to a rock shaft 25 mounted in bearing in the frame. The levers 24 are adapted to be operated by a. shift key lever 26, the same engaging with a bell crank lever portion of the arm 24. The type bars 13 and 13 are intended to carry upper and lower case type, respectively. The link 20 is provided at one end with a segmental slot through which is passed a fixed bar 27 supported in the frame and Which serves to prevent longitudinal movement of the link 20.

The operation of the construction is as follows: When the shift key of the lever 26 is in its upper position, asshovvn in Fig. 1, the pivot rod or bar will bein the rightha'nd end of the slot link 20 as'the parts are shown in Fig. 1. If the key lever 22 be now operated by depressing the key through the medium of the link or connection 21, the left-hand end of the link 20 will be moved down swinging on the bar 23 as a pivot, the link 19 will become effective to operate the type bar 13. At the same time the link 19. will not be operative; likewise the type bar 13. By depressing the shift key lever 26 the arms 24 carrying the bar 23 willbe swung over into the position shown in dotted lines in Fig. 1. The link 20 will not be allowed to move or follow in this movement on accountof being held by the fixed bar 27. If in the shifted position mentioned, the key lever be now depressed the righthand end of the link 20 Will be moved down and the type bar 13 operated through the medium of the link 19 and the hell crank lever 18 and the other connection. The segmental slot in which bar 27 engages permits the swinging movement of the link in the operation last described. In making the shift from the upper to the lowercasaor vice versa, with the mechanism herein shown and described there is very little weight or mechanism to be moved, simply either of the shift levers 26, the arms 24: and the fulcrum bar .23.

lt is evident that modifications and changes in and from the construction herein described may be made Without departing 'fl'OID my invention or the subject matter intended to be covered by the claims.

' hat I claim as new and desire tosecurc by Letters Patent is:

1. The combination in a typewriter 01 two type bars, a single key lever, 'a slotted link, connections from each end of said link to one of the said type bars, a fulcrum movable longitudinally in said slotted link and adapted to lock either end of said link from operation and means connected to said key lever and separate froinsaid fulcrum moving means for operating said slotted link.

In. an action mechanism for typewriters the combination of a set of type bars,aset of key levers, connections from each key lever to two type bars, said connect-ions including a slotted link and a movable fulcrum on which the link is mounted, and a key shifting lever for moving said fulcrum, substantially as set forth.

3. In an action mechanism for typewriters at. ce nbination of a set of type bar-s a set of key levers, connections from each key lever to two type bars, said connections ineluding a slotted link and a movable 'ful-w cruin on Which the link is mounted, and means for holding said link from longitudinal movement with said fulcrum, substantially as set forth.

4s The combination in a typewriter of two type bars, a single key lever, a slotted link, connections from each end oi said link to one ot the said type bars, a connection from the center of said slotted link to the key lever and a fulcrum movable longitudinally in said slotted link, and adapted to lock either end of said link from operation, substantially as set forth.

5. The combination in a typewriter of two type bars, a single key lever, a slotted link connections from each end of said link to one of said type bars, a connection from the center of said slotted link to the key lever, a fulcrum movable longitudinally. in said slotted link and adapted to lock either end of the" said link from operation, and a key lever for operating Y's-aid fulcrum, substantially as set forth. I

6. The combination in a typewriter of two type bars, a single key lover, a slotted link, connections from each end of said link to one of the said type bars, a connection from the center of the said slotted link to the key lever, a fulcrum movable longitudinally in said slotted link and adapted to lock either end of said link from operation and a stop holding said link from lon 'tudinal movement With the said fulcrum, substantially ,as set forth.

AUGUSTUS G. SNYDER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 3. G, 

